Little Old Man

A woman walked up to a little old man rocking in a chair on his porch. "I couldn't help notice how happy you look," she said. "What's your secret for a long and happy life?"
"I smoke three packs of cigarettes a day," he said. "I drink a case of whisky a week, eat fatty foods and never exercise."
"That's amazing," the woman said. "How old are you?"
"Twenty-six."